<h3>General</h3>
<ol>
+ <li>
+ <p>
+ New: The configure switch <code>--with-cpu=...</code> now allows the value
+ <code>native</code>, indicating that we would like the compiler to figure
+ out which CPU we are running on and optimize for it. The resulting
+ libraries may not work on other (previous generation) processors, however.
+ <br>
+ (WB 2009/08/20)
+ </p>
+ </li>
+
<li>
<p>
Fixed: @ref step_31 "step-31" had a bug in the computation of the
global scaling parameter in the function that evaluates the artificial
viscosity: we computed
- $c(\mathbf{u},T) =
+ $c(\mathbf{u},T) =
c_R\ \|\mathbf{u}\|_{L^\infty(\Omega)} \ \mathrm{var}(T)
\frac{1}{|\mathrm{diam}(\Omega)|^{\alpha-2}}$
when it should have been
- $c(\mathbf{u},T) =
+ $c(\mathbf{u},T) =
c_R\ \|\mathbf{u}\|_{L^\infty(\Omega)} \ \mathrm{var}(T)
\ |\mathrm{diam}(\Omega)|^{\alpha-2}$. This didn't matter much in this
program because $\mathrm{diam}(\Omega)=2^{1/\textrm{dim}}$ and so is close